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From: Vincent Aravantinos <vincent.aravantinos@yahoo.fr>
To: Ashish Agarwal <agarwal1975@gmail.com>
Cc: OCaml <caml-list@inria.fr>
Subject: Re: [Caml-list] Depend-type beginner question
Date: Fri, 5 Oct 2007 18:15:01 +0200	[thread overview]
Message-ID: <C4EB10C2-D17A-47A3-869D-AD310AE6697E@yahoo.fr> (raw)
In-Reply-To: <d8be5ae20710050905h5bc51535tcbf17d584d4960ef@mail.gmail.com>


Le 5 oct. 07 à 18:05, Ashish Agarwal a écrit :

> > I can't get how the following could ever be typed at compile time:
> >
> >  > if ... then [] else [a]
> >
> > Is this a 0-list or a 1-list ? do they just put an existential
> > variable -> n-list ? If this is it, it seems to me that you won't be
> > able to gain much information.
>
> The type system is not rich enough to distinguish between 0-lists'  
> and 1-list's. It is just a list.

So what is the gain ?


  reply	other threads:[~2007-10-05 16:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-05 15:32 Vincent Aravantinos
2007-10-05 15:41 ` [Caml-list] " Christopher L Conway
2007-10-05 15:53   ` Vincent Aravantinos
2007-10-05 16:05     ` Ashish Agarwal
2007-10-05 16:15       ` Vincent Aravantinos [this message]
2007-10-05 16:18     ` Christophe Raffalli
2007-10-05 16:34       ` Vincent Aravantinos
2007-10-05 23:29         ` Arnaud Spiwack
2007-10-05 16:51     ` Lukasz Stafiniak

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